
Read the web novel. Besides He Yan. My favourite character Xiao Wu. He will be the dark horse no one sees coming.

use auto google translate in your browser
https://www.xbiquge.cc/book/52496/

Basically gives the plot away.

u might not believe it but many japanese smut mangas (nOT ALL) have very clear and obvious names like "i fucked my friend's mom and now we're sex friends". sorta like isekai titles nowadays "i've been reincarnated into an otome game as the male lead's abandoned sister and i'm trying to stop getting destruction flags!!!!!"
Is this a promo or one shot?